crayfish, tilapia and bullfrog are the first species that I think of when I mention the failed invasion. These three species have become a delicious dish on our table after invading China, especially crayfish, which has made countless countries helpless. In our country, it is called the most failed species. If we don't rely on artificial breeding, we can eat the domestic crayfish extinct; Summer is coming, crayfish has become our favorite, spicy crayfish, garlic crayfish and so on.